B
    ¥ŠãZR	  ã               @   s,   d Z ddlZddlmZ G dd„ deƒZdS )zvDescriptive Statistics for Time Series

Created on Sat Oct 30 14:24:08 2010

Author: josef-pktd
License: BSD(3clause)
é    Né   )Ú	stattoolsc               @   s\   e Zd ZdZddd„Zdd„ Zdd	d
„Zddd„Zddd„Zddd„Z	dd„ Z
ddd„ZdS )ÚTsaDescriptivezCcollection of descriptive statistical methods for time series

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   ú?lib/python3.7/site-packages/statsmodels/tsa/descriptivestats.pyÚ__init__   s    zTsaDescriptive.__init__c             C   s0   ddl m} |||| jƒ}|  || j| jd ¡S )Nr   )ÚlfilterZ	_filtered)Zscipy.signalr   r   Ú	__class__r   r   )r	   ZnumZdenr   Z	xfilteredr
   r
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_detrended)r   r   Údetrendr   r   r   r   )r	   r   r   Z
xdetrendedr
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   r   r      s    zTsaDescriptive.detrend©r   r   r   c             K   s6   ddl m} || jƒ| _| jjf d|i|—Ž| _| jS )Nr   )ÚARMAr   )Zarima_modelr   r   ÚmodÚfitZres)r	   r   Úkwdsr   r
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   r   r   #   s    zTsaDescriptive.fité(   c             C   s   t j| j|dS )N)Únlags)ÚsttÚacfr   )r	   r   r
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   r   r   *   s    zTsaDescriptive.acfc             C   s   t j| j|dS )N)r   )r   Úpacfr   )r	   r   r
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   r   r   0   s    zTsaDescriptive.periodograméd   é   c             C   s
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zTsaDescriptive.plot4)Nr   )r   )r   )r   )r   )Nr   r   r   )Ú__name__Ú
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